Analysis
- max time kernel
0s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
10/06/2024, 06:52
General
- Target 2024-06-10_4ab2435763fc457f174828b9c20ced6c_cryptolocker.exe
- Size 64KB
- Sample240610-hm96fade2x
- SHA256 fa9423309f075f714fec5321966720ce2ace73304ddb5feb100eaa61fce01040
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
- Detection of Cryptolocker Samples 3 IoCs
- UPX dump on OEP (original entry point) 5 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-06-10_4ab2435763fc457f174828b9c20ced6c_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-10_4ab2435763fc457f174828b9c20ced6c_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
asih.exe
memory/1392-22-0x00000000006D0000-0x00000000006D6000-memory.dmp
memory/1392-21-0x00000000005B0000-0x00000000005B6000-memory.dmp
memory/1392-19-0x0000000000500000-0x0000000000510000-memory.dmp
memory/1392-28-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4680-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/4680-1-0x00000000005A0000-0x00000000005A6000-memory.dmp
memory/4680-2-0x00000000006C0000-0x00000000006C6000-memory.dmp
memory/4680-9-0x00000000005A0000-0x00000000005A6000-memory.dmp
memory/4680-18-0x0000000000500000-0x0000000000510000-memory.dmp